'Big Bang Theory' star Kaley Cuoco reveals 'unbelievable' surprise she has planned for fans (Exclusive)

Kaley Cuoco has an awesome surprise 13 years in the making for fans of "The Big Bang Theory."

The actress has always had a penchant for documenting her life's experiences, as evidenced by her active and popular Instagram account, where she gives her followers an inside peek at her life on and off set, but she's taking that documentation to the next level with a secret project that she has planned for the future.

During an interview for her partnership with Shell, Cuoco exclusively told AOL's Gibson Johns that she's taken "2,000 Polaroids since the beginning" of "Big Bang" way back in 2006 and, when we suggested that she released them as a book, she laughed and said that was already her plan.

"You know what? That is what I’m going to do," she revealed. "I’ll wait about another year or two, but that’s the goal with the Polaroids. I think fans will love it. [Maybe] a cool coffee table book? I have pictures that are unbelievable, like behind-the-scenes from the pilot that are just incredible."

Cuoco's planned book full of Polaroids will surely quench fans' thirst for new "Big Bang" content in the years following its historic 12-season run on CBS. For now, though, the actress and her beloved co-stars are making sure to soak up every second on set ahead of the show's series finale in May.

"We definitely been more aware of our surroundings and keeping every moment in," she told us. "It’s been 12 years and we’re all extreme basket cases right now. [...] I still can’t believe the impact that the show has had on so many different people all over the world. It’s been an unbelievable experience, and I think it will be devastating to wrap it all up, but it’s also nice to kind of move forward."

70 PHOTOS
Kaley Cuoco's style transformation
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Kaley Cuoco's style transformation
Kaley Cuoco during ABC 2002 Summer Press Tour All - Star Party at Tournament House in Pasadena, California, United States. (Photo by Jean-Paul Aussenard/WireImage)
MALIBU, CA - OCTOBER 12: Actress Kaley Cuoco attends the Style by the Shore fashion show hosted by clothing designer David Park at Malibu Beach on October 12, 2002 in Malibu, California. (Photo by Robert Mora/Getty Images)
Kaley Cuoco during 'Bringing Down the House' Premiere at El Capitan Theatre in Hollywood, California, United States. (Photo by SGranitz/WireImage)
Kaley Cuoco of '8 Simple Rules for Dating My Teenage Daughter' (Photo by Gregg DeGuire/WireImage)
Kaley Cuoco during 2003 Teen Choice Awards - Arrivals at Universal Amphitheatre in Universal City, California, United States. (Photo by SGranitz/WireImage)
Kaley Cuoco (Photo by Gregg DeGuire/WireImage)
Kaley Cuoco (Photo by Amy Graves/WireImage for Vogue and Vogue.com (USA))
Kaley Cuoco (Photo by Albert L. Ortega/WireImage)
Kaley Cuoco (Photo by Jeffrey Mayer/WireImage)
Kaley Cuoco (Photo by SGranitz/WireImage)
LOS ANGELES - JUNE 2: Actress Kaley Cuoco arrives for the Premiere The New Power awards at Forbidden City June 2, 2004 in Los Angeles, California. (Photo by Carlo Allegri/Getty Images)
Kaley Cuoco during 2004 ABC All Star Party at C2 CafZ in Century City, California, United States. (Photo by Jon Kopaloff/FilmMagic)
Kaley Cuoco (Photo by J. Vespa/WireImage for Teen Vogue)
Kaley Cuoco 8505_SG18_00037.jpg during TNT Broadcasts 11th Annual Screen Actors Guild Awards - Arrivals at Shrine Auditorium in Los Angeles, California, United States. (Photo by SGranitz/WireImage)
Kaley Cuoco (Photo by Jean-Paul Aussenard/WireImage)
HOLLYWOOD, CA - APRIL 12: Kaley Cuoco attends Nautica and Details Magazine Celebrate the April Issue of Details and NEXT BIG THINGS... at Roosevelt Hotel on April 12, 2005 in Hollywood, California. (Photo by Stefanie Keenan/Patrick McMullan via Getty Images)
Kaley Cuoco during 2006 General Motors Annual ten Celebrity Fashion Show - Arrivals at 1540 Vine Street in Hollywood, California, United States. (Photo by Jon Kopaloff/FilmMagic)
LOS ANGELES, CA - JULY 19: Actress Kaley Cuoco arrives at the 'CBS Summer Press Tour - Stars Party 2007' at the Wadsworth Theatre on July 19, 2007 in Los Angeles, California. (Photo by Gregg DeGuire/WireImage)
Actress Kaley Cuoco arrives at the 'Us Weekly's Hot Hollywood 2007- Arrivals' at Opera on September 26, 2007 in Hollywood, California. (Photo by Jon Kopaloff/FilmMagic)
WEST HOLLYWOOD, CA - SEPTEMBER 19: Actress Kaley Cuoco arrives at the CBS monday night season premieres held at Area in West Hollywood, California on September 19th, 2007. (Photo by Jean-Paul Aussenard/WireImage)
LAS VEGAS - MAY 18: Actress Kaley Cuoco arrives at the 43rd annual Academy Of Country Music Awards held at the MGM Grand Garden Arena on May 18, 2008 in Las Vegas, Nevada. (Photo by Frederick M. Brown/Getty Images)
BEVERLY HILLS, CA - MARCH 29: Actress Kaley Cuoco attends The 22nd Annual Genesis Awards at the Beverly Hilton Hotel on March 29, 2008 in Beverly Hills, California. (Photo by Jason LaVeris/FilmMagic)
BEVERLY HILLS, CA - MARCH 28: Kaley Cuoco attends 23rd Annual Genesis Awards at The Beverly Hilton on March 28, 2009 in Beverly Hills, California. (Photo by ANDREAS BRANCH/Patrick McMullan via Getty Images)
LAS VEGAS - APRIL 05: Actress Kaley Cuoco arrives at the 44th annual Academy Of Country Music Awards held at the MGM Grand on April 5, 2009 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images)
Actress Kaley Cuoco arrives at the 61st Primetime Emmy Awards held at the Nokia Theatre on September 20, 2009 in Los Angeles, California. (Photo by Steve Granitz/WireImage)
Actress Kaley Cuoco arrives at Entertainment Weekly and Women In Film pre-Emmy party held at the Sunset Marquis Hotel. (Photo by Frank Trapper/Corbis via Getty Images)
LOS ANGELES, CA - JANUARY 06: Actress Kaley Cuoco arrives at the 2010 People's Choice Awards at Nokia Theatre L.A. Live on January 6, 2010 in Los Angeles, California. (Photo by Jeffrey Mayer/WireImage)
LOS ANGELES, CA - OCTOBER 29: Actress Kaley Cuoco attends Gen Art's 12th annual 'Fresh Faces In Fashion' at Petersen Automotive Museum on October 29, 2009 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
BEVERLY HILLS, CA - MARCH 18:Actress Kaley Cuoco arrives at the 18th Annual ''A Night At Sardi's'' Fundraiser And Awards Dinner held a the Beverly Hilton Hotel on March 18, 2010 in Beverly Hills, California. (Photo by Frazer Harrison/Getty Images)
NORTH HOLLYWOOD, CA - FEBRUARY 18: Actress Kaley Cuoco arrives at The Academy of Television Arts and Sciences' an evening with 'The Big Bang Theory' on February 18, 2010 in North Hollywood, California. (Photo by Alberto E. Rodriguez/Getty Images)
WEST HOLLYWOOD, CA - AUGUST 27: Kaley Cuoco arrives at the Entertainment Weekly and Women In Film Pre-Emmy Party at the 'Restaurant' at the Sunset Marquis Hotel on August 27, 2010 in West Hollywood, California. (Photo by Gregg DeGuire/FilmMagic)
BEVERLY HILLS, CA - JULY 28: Kaley Cuoco arrives at the Hollywood Foreign Press Association Annual Installation Luncheon held at The Four Seasons Hotel on July 28, 2010 in Beverly Hills, California. (Photo by Gregg DeGuire/FilmMagic)
LOS ANGELES, CA - JANUARY 05: Actress Kaley Cuoco arrives at the 2011 People's Choice Awards at Nokia Theatre L.A. Live on January 5, 2011 in Los Angeles, California. (Photo by Jon Kopaloff/FilmMagic)
BEVERLY HILLS, CA - JANUARY 16: Actress Kaley Cuoco arrives at the 68th Annual Golden Globe Awards held at The Beverly Hilton hotel on January 16, 2011 in Beverly Hills, California. (Photo by Steve Granitz/WireImage)
Actress Kaley Cuoco arrives at the world premiere of the live action/CG -animated comedy 'Hop' held at Universal Studios Hollywood. (Photo by Frank Trapper/Corbis via Getty Images)
UNIVERSAL CITY, CA - AUGUST 07: Actress Kaley Cuoco arrives at the 2011 Teen Choice Awards held at the Gibson Amphitheatre on August 7, 2011 in Universal City, California. (Photo by Jason Merritt/Getty Images)
Actress Kaley Cuoco arrives at the Critics' Choice Television Awards held at the Beverly Hills Hotel in Beverly Hills. (Photo by Frank Trapper/Corbis via Getty Images)
WEST HOLLYWOOD, CA - AUGUST 10: Actress Kaley Cuoco arrives at the 10th Annual InStyle Summer Soiree held at The London Hotel on August 10, 2011 in West Hollywood, California. (Photo by Jason Merritt/Getty Images)
Actress Kaley Cuoco arrives at the 63rd Primetime Emmy Awards at Nokia Theatre L.A. Live on September 18, 2011 in Los Angeles, California.
LOS ANGELES, CA - JANUARY 11: Host Kaley Cuoco arrives at the People's Choice Awards 2012 at Nokia Theatre LA Live on January 11, 2012 in Los Angeles, California. (Photo by Steve Granitz/WireImage)
BEVERLY HILLS, CA - MARCH 01: Kaley Cuoco arrives at the 21st Annual Hall of Fame gala held at Beverly Hills Hotel on March 1, 2012 in Beverly Hills, California. (Photo by Michael Tran/FilmMagic)
SAN DIEGO, CA - JULY 13: Actress Kaley Cuoco attends 'The Big Bang Theory' Press Room during Comic-Con International 2012 held at the Hilton San Diego Bayfront Hotel on July 13, 2012 in San Diego, California. (Photo by Frazer Harrison/Getty Images)
BEVERLY HILLS, CA - NOVEMBER 15: Actor Kaley Cuoco attends the 2013 People's Choice Awards nomination announcements at The Paley Center for Media on November 15, 2012 in Beverly Hills, California. (Photo by Jason LaVeris/FilmMagic)
LOS ANGELES, CA - JANUARY 09: Actor Kaley Cuoco attends the 2013 People's Choice Awards Press Room held at Nokia Theatre L.A. Live on January 9, 2013 in Los Angeles, California. (Photo by Jennifer Graylock/FilmMagic)
LOS ANGELES, CA - FEBRUARY 10: Actress Kaley Cuoco arrives at the 55th Annual GRAMMY Awards at Staples Center on February 10, 2013 in Los Angeles, California. (Photo by Jason Merritt/Getty Images)
LOS ANGELES, CA - JANUARY 27: Actor Kaley Cuoco arrives at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium on January 27, 2013 in Los Angeles, California. (Photo by Dan MacMedan/WireImage)
BEVERLY HILLS, CA - JUNE 10: Actress Kaley Cuoco attends the BTJA Critics' Choice Television Award held at The Beverly Hilton Hotel on June 10, 2013 in Beverly Hills, California. (Photo by Tommaso Boddi/WireImage)
LOS ANGELES, CA - SEPTEMBER 22: Actress Kaley Cuoco arrives at the 65th Annual Primetime Emmy Awards held at Nokia Theatre L.A. Live on September 22, 2013 in Los Angeles, California. (Photo by Jeff Vespa/WireImage)
PACIFIC PALISADES, CA - OCTOBER 05: Actress Kaley Cuoco arrives at the Veuve Clicquot Polo Classic at Will Rogers State Historic Park on October 5, 2013 in Pacific Palisades, California. (Photo by Gregg DeGuire/WireImage)
BEVERLY HILLS, CA - OCTOBER 27: Actress Kaley Cuoco attends the Amanda Foundation's annual 'Bow Wow Beverly Hills' Halloween event at Rodeo Two on October 27, 2013 in Beverly Hills, California. (Photo by Paul Archuleta/FilmMagic)
LOS ANGELES, CA - JANUARY 18: Actress Kaley Cuoco attends the 20th Annual Screen Actors Guild Awards at The Shrine Auditorium on January 18, 2014 in Los Angeles, California. (Photo by Steve Granitz/WireImage)
BEVERLY HILLS, CA - JANUARY 12: Kaley Cuoco arrives at the 71st Annual Golden Globe Awards at The Beverly Hilton Hotel on January 12, 2014 in Beverly Hills, California. (Photo by Steve Granitz/WireImage)
BEVERLY HILLS, CA - OCTOBER 20: Actress Kaley Cuoco-Sweeting attends the 2014 ELLE Women In Hollywood Awards at the Four Seasons Hotel on October 20, 2014 in Beverly Hills, California. (Photo by Steve Granitz/WireImage)
BEL AIR, CA - OCTOBER 22: Actress Kaley Cuoco-Sweeting attends the ASPCA Compassion Awards on October 22, 2014 in Bel Air, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
BEVERLY HILLS, CA - DECEMBER 18: Actress Kaley Cuoco-Sweeting attends the PEOPLE Magazine Awards at The Beverly Hilton Hotel on December 18, 2014 in Beverly Hills, California. (Photo by Kevin Mazur/PMA2014/WireImage)
HOLLYWOOD, CA - JANUARY 06: Actress Kaley Cuoco-Sweeting attends the world premiere of 'The Wedding Ringer' at TCL Chinese Theatre on January 6, 2015 in Hollywood, California. (Photo by Taylor Hill/WireImage)
INGLEWOOD, CA - MARCH 28: Actress Kaley Cuoco arrives at Nickelodeon's 28th Annual Kids' Choice Awards at The Forum on March 28, 2015 in Inglewood, California. (Photo by Jon Kopaloff/FilmMagic)
BEVERLY HILLS, CA - AUGUST 21: Actress Kaley Cuoco attends The Beverly Hilton celebrates 60 years with a diamond anniversary party at The Beverly Hilton Hotel on August 21, 2015 in Beverly Hills, California. (Photo by Randy Shropshire/Getty Images)
LOS ANGELES, CA - NOVEMBER 5: Kaley Cuoco attends the Fallout 4 video game launch event in downtown Los Angeles on November 5, 2015 in Los Angeles, California. (Photo by JB Lacroix/WireImage)
CULVER CITY, CA - JANUARY 09: Actress Kaley Cuoco attends Art of Elysium's 9th annual Heaven Gala at 3LABS on January 9, 2016 in Culver City, California. (Photo by Jason LaVeris/FilmMagic)
LOS ANGELES, CA - JANUARY 30: Actress Kaley Cuoco attends the 22nd Annual Screen Actors Guild Awards at The Shrine Auditorium on January 30, 2016 in Los Angeles, California. (Photo by Dan MacMedan/WireImage)
LOS ANGELES, CA - FEBRUARY 15: Actress Kaley Cuoco attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles, California. (Photo by John Shearer/WireImage)
LOS ANGELES, CA - FEBRUARY 20: Actress Kaley Cuoco attends 'The Big Bang Theory' 200th episode celebration at Vibiana on February 20, 2016 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
BEVERLY HILLS, CA - MARCH 09: Actress Kaley Cuoco attends the 2016 Alzheimer's Association's 'A Night At Sardi's' at The Beverly Hilton Hotel on March 9, 2016 in Beverly Hills, California. (Photo by Jason LaVeris/FilmMagic)
HOLLYWOOD, CA - MARCH 16: Actress Kaley Cuoco arrives at The Paley Center For Media's 33rd Annual PaleyFest Los Angeles presentation of 'The Big Bang Theory' at the Dolby Theatre on March 16, 2016 in Hollywood, California. (Photo by Amanda Edwards/WireImage)
UNIVERSAL CITY, CA - AUGUST 30: Kaley Cuoco visits 'Extra' at Universal Studios Hollywood on August 30, 2017 in Universal City, California. (Photo by Noel Vasquez/Getty Images)
LONG BEACH, CA - SEPTEMBER 29: Kaley Cuoco arrives at the Longines Masters Los Angeles - Gala at Long Beach Convention Center on September 29, 2016 in Long Beach, California. (Photo by Steve Granitz/WireImage)
SANTA MONICA, CA - DECEMBER 11: Actress Kaley Cuoco attends The 22nd Annual Critics' Choice Awards at Barker Hangar on December 11, 2016 in Santa Monica, California. (Photo by Frazer Harrison/Getty Images)
LOS ANGELES, CA - NOVEMBER 13: Actress Kaley Cuoco attends Fergie, First Lady of Los Angeles Amy Elaine Wakeland & Barneys New York Host Dinner to Welcome Cindi Leive & Glamour's 2016 Women of the Year to the West Coast on November 13, 2016 in Los Angeles, California. (Photo by Stefanie Keenan/Getty Images for Glamour)
SANTA MONICA, CA - JANUARY 11: Actress Kaley Cuoco attends the 23rd Annual Critics' Choice Awards at Barker Hangar on January 11, 2018 in Santa Monica, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
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One of the ways that Cuoco is moving forward is by signing on to host "The Great Travel Hack" digital video series in partnership with Shell. The competition show involves two teams traveling across the United States while trying to use the lowest amount of CO2 emissions possible. For the actress, it was a fun opportunity to combine her obsession with competition shows and encouraging her fans to decrease their carbon footprints.

"I feel very lucky to be able to use my voice. It’s important for me to do so for the greater good and if someone will listen to me, that’s fantastic," Cucoco explained.  "We’re not going to change the world overnight, but if it makes one person think twice, then we’re doing something right."

Watch "The Great Travel Hack" video series here.

35 PHOTOS
'Big Bang Theory' star Johnny Galecki through the years
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'Big Bang Theory' star Johnny Galecki through the years
Actress Carol Kane and actor Johnny Galecki attending the premiere of 'Lemmon Sisters' on August 27, 1990 at Mann Plaza Theater in Westwood, California. (Photo by Ron Galella, Ltd./WireImage)
UNITED STATES - MARCH 04: ROSEANNE- 'Gallery' 1991 Sara Gilbert, Johnny Galecki (Photo by ABC Photo Archives/ABC via Getty Images)
UNITED STATES - OCTOBER 16: ROSEANNE - On set in New York - 10/16/93, Sara Gilbert (Darlene), Johnny Galecki (David) on the ABC Television Network comedy 'Roseanne'. 'Roseanne' is the story of a working class family struggling with life's essential problems., (Photo by ABC Photo Archives/ABC via Getty Images)
American actress Sara Gilbert, with elastic bandage on wrist, and Belgian-born actor Johnny Galecki. (Photo by Kevin Winter/DMI/The LIFE Picture Collection/Getty Images)
UNITED STATES - SEPTEMBER 28: ROSEANNE - 'Party Politics' - Season Six - 9/28/93, Johnny Galecki (David), Sara Gilbert (Darlene) on the ABC Television Network comedy 'Roseanne'. Jackie and Roseanne plan a house-warming party for Jackie's new home., (Photo by ABC Photo Archives/ABC via Getty Images)
UNITED STATES - MARCH 08: ROSEANNE - 'Gallery' 1993 Johnny Galecki (Photo by ABC Photo Archives/ABC via Getty Images)
LOS ANGELES, CA - 1995: Actor Johnny Galecki poses for a portrait while attending an event circa 1995 in Los Angeles, California. (Photo by Ron Davis/Getty Images)
Actor Johnny Galecki attends the Bed of Roses Century City Premiere on January 18, 1996 at Cineplex Odeon Century Plaza Cinemas in Century City, California. (Photo by Ron Galella, Ltd./WireImage)
NASHVILLE, TN - JUNE 07: Actor Johnny Galecki attends the 2017 CMT Music Awards at the Music City Center on June 7, 2017 in Nashville, Tennessee. (Photo by Michael Loccisano/Getty Images For CMT)
LOS ANGELES - MARCH 28: 'The Separation Agitation' -- Pictured: Leonard Hofstadter (Johnny Galecki) and Penny (Kaley Cuoco). Coverage of the CBS series THE BIG BANG THEORY, scheduled to air on the CBS Television Network. (Photo by Sonja Flemming/CBS via Getty Images)
LOS ANGELES, CA - FEBRUARY 02: Actor Johnny Galecki attends a screening of 'Rings' at Regal LA Live Stadium 14 on February 2, 2017 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
LOS ANGELES, CA - JANUARY 29: Actor Johnny Galecki attends the 23rd Annual Screen Actors Guild Awards at The Shrine Expo Hall on January 29, 2017 in Los Angeles, California. (Photo by Steve Granitz/WireImage)
NEW YORK, NY - JANUARY 20: Actor Johnny Galecki visits Build Series to discuss the movie 'Rings' at Build Studio on January 20, 2017 in New York City. (Photo by Mike Pont/WireImage)
LOS ANGELES - JANUARY 25: Sting and Johnny Galecki chat with James Corden during 'The Late Late Show with James Corden,' Tuesday, January 31, 2017 (12:35 PM-1:37 AM ET/PT) On The CBS Television Network. (Photo by Terence Patrick/CBS via Getty Images)
NEW YORK, NY - JANUARY 20: Jim Parsons and Johnny Galecki visits at SiriusXM Studios on January 20, 2017 in New York City. (Photo by Robin Marchant/Getty Images)
The Cast of The Big Bang Theory (actors Kaley Cuoco, Kunal Nayyar, Melissa Rauch, Simon Helberg, Mayim Bialik, Johnny Galecki) pose for a portrait as the winners of 'Favorite Network TV Comedy' at the 2017 People's Choice Awards at the Microsoft Theater on January 18, 2017 in Los Angeles, California. (Photo by Smallz & Raskind/Getty Images Portrait) FAVORITE NETWORK TV COMEDY
NEW YORK, NY - JANUARY 19: Actor Johnny Galecki enters the 'The Late Show With Stephen Colbert' taping at Ed Sullivan Theater on January 19, 2017 in New York City. (Photo by Ray Tamarra/GC Images)
LOS ANGELES, CA - JANUARY 18: Actors Jordana Brewster and Johnny Galecki backstage at the People's Choice Awards 2017 at Microsoft Theater on January 18, 2017 in Los Angeles, California. (Photo by Emma McIntyre/Getty Images for People's Choice Awards)
LOS ANGELES, CA - OCTOBER 15: Actor Johnny Galecki attends Hilarity for Charity's 5th Annual Los Angeles Variety Show: Seth Rogen's Halloween at Hollywood Palladium on October 15, 2016 in Los Angeles, California. (Photo by Randy Shropshire/Getty Images)
LOS ANGELES - NOVEMBER 22: 'The Birthday Synchronicity' -- Pictured: Penny (Kaley Cuoco) and Leonard Hofstadter (Johnny Galecki). Howard and Bernadette welcome their new baby and Sheldon and Amy celebrate Amy's birthday, on THE BIG BANG THEORY, Thursday, Dec. 15 (8:00-8:31 PM, ET/PT) on the CBS Television Network. (Photo by Monty Brinton/CBS via Getty Images)
LOS ANGELES - JANUARY 16: 'The Locomotion Reverberation'-- Pictured: Howard Wolowitz (Simon Helberg) and Leonard Hofstadter (Johnny Galecki). Leonard and Wolowitz try to distract Sheldon when he slows the progress of their guidance system. Also, Penny and Amy take Bernadette out for the night, leaving Raj and Stuart to care for baby Halley, on THE BIG BANG THEORY, Thursday, Feb. 9 (8:00-8:31 PM, ET/PT), on the CBS Television Network. Dean Norris returns as Colonel Williams. (Photo by Sonja Flemming/CBS via Getty Images)
WEST HOLLYWOOD, CA - AUGUST 11: Actor Johnny Galecki, Musician Billy Gibbons and Photographer Timothy White attend the Cars And Stars Exhibit at Morrison Hotel Gallery on August 11, 2016 in West Hollywood, California. (Photo by Liliane Lathan/Getty Images)
LOS ANGELES - APRIL 19: 'The Line Substitution Solution' -- Pictured: Leonard Hofstadter (Johnny Galecki) and Howard Wolowitz (Simon Helberg). Sheldon hires Stuart to spend the day with Amy when he'd rather go to a movie screening. Also, Leonard's mother, Beverly (Christine Baranski), comes to town and Penny struggles to make a connection with her, on THE BIG BANG THEORY, Thursday, May 5 (8:00-8:31, ET/PT) on the CBS Television Network. (Photo by Michael Yarish/CBS via Getty Images)
UNIVERSAL CITY, CA - MAY 26: Johnny Galecki arrives at the Red Nose Day Special on NBC at Alfred Hitchcock Theater at Universal Studios on May 26, 2016 in Universal City, California. (Photo by Jerod Harris/WireImage)
LOS ANGELES, CA - MARCH 28: Johnny Galecki (2L) and Floyd Mayweather Jr. attend a basketball game between the Boston Celtics and the Los Angeles Clippers at Staples Center on March 28, 2016 in Los Angeles, California. (Photo by Noel Vasquez/GC Images)
HOLLYWOOD, CALIFORNIA - MARCH 16: Actors Johnny Galecki and Simon Helberg attend The Paley Center For Media's 33rd Annual PALEYFEST Los Angeles �he Big Bang Theory' at Dolby Theatre on March 16, 2016 in Hollywood, California. (Photo by Matt Winkelmeyer/Getty Images)
AUSTIN, TX - MARCH 13: (L-R) Producer Aaron L. Gilbert and actors Kyle Gallner and Johnny Galecki attend the premiere of 'The Master Cleanse' during the 2016 SXSW Music, Film + Interactive Festival at Alamo Lamar D on March 13, 2016 in Austin, Texas. (Photo by James Goulden Photography/Getty Images for SXSW)
AUSTIN, TX - MARCH 13: (L-R) Actors Johnny Galecki, Kyle Gallner and writer/director Bobby Miller of 'Master Cleanse' are photographed in the Getty Images SXSW Portrait Studio powered by Samsung at the Samsung Studio on March 13, 2016 in Austin, Texas. (Photo by Smallz & Raskind/Getty Images for Samsung)
BEVERLY HILLS, CA - MARCH 09: Actor Johnny Galecki attends the 24th and final 'A Night at Sardi's' to benefit the Alzheimer's Association at The Beverly Hilton Hotel on March 9, 2016 in Beverly Hills, California. (Photo by Vincent Sandoval/WireImage)
BEVERLY HILLS, CA - MARCH 09: Actors Johnny Galecki (L) and Kaley Cuoco attend the 24th and final 'A Night at Sardi's' to benefit the Alzheimer's Association at The Beverly Hilton Hotel on March 9, 2016 in Beverly Hills, California. (Photo by Frederick M. Brown/Getty Images)
LOS ANGELES, CA - MARCH 07: Actor Johnny Galecki attends the premiere of Sony Pictures Classics' 'The Bronze' at the Regent Theater on March 7, 2016 in Los Angeles, California. (Photo by Michael Tullberg/Getty Images)
LOS ANGELES, CA - FEBRUARY 20: Actor Johnny Galecki attends 'The Big Bang Theory' 200th episode celebration at Vibiana on February 20, 2016 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
LOS ANGELES - FEBRUARY 8: 'The Celebration Experimentation' -- After more than nine years together, the gang finally celebrates Sheldon's birthday, surprising him with a special guest, on the 200th episode of THE BIG BANG THEORY, Thursday, Feb. 25 (8:00-8:31 PM, ET/PT) on the CBS Television Network. Seated left to right: Kunal Nayyar, Kaley Cuoco, Adam West, Simon Helberg and Johnny Galecki Standing left to right: Mayim Bialik, Sara Gilbert, Kevin Sussman, Jim Parsons, Melissa Rauch, Wil Wheaton, Christine Baranski and John Ross Bowie (Photo by Monty Brinton/CBS via Getty Images)
LOS ANGELES, CA - JANUARY 30: Actor Johnny Galecki attends the 22nd Annual Screen Actors Guild Awards at The Shrine Auditorium on January 30, 2016 in Los Angeles, California. (Photo by Dan MacMedan/WireImage)
Actor Johnny Galecki attends the I Know What You Did Last Summer Hollywood Premiere on October 8, 1997 at GCC Galaxy Theatre in Hollywood, California. (Photo by Ron Galella, Ltd./WireImage)
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